| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.4 | 44.8 | 55.4 | 64.5 | 73.5 | 81.7 | 90.8 | 90.1 | 81.0 | 67.6 | 48.9 | 38.5 | 64.5 |
| Highest Mean Max. Temperature (F) | 45.1 | 52.5 | 64.1 | 73.7 | 81.3 | 89.5 | 96.9 | 95.7 | 87.8 | 77.3 | 58.4 | 46.2 | 96.9 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1977 | 1992 | 1974 | 1985 | 1971 | 1990 | 1988 | 1976 | 1973 | 1985 |
| Lowest Mean Max. Temperature (F) | 25.6 | 28.3 | 45.4 | 54.8 | 68.0 | 74.9 | 77.7 | 85.0 | 72.2 | 61.1 | 37.7 | 26.0 | 25.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1991 | 1993 | 1993 | 1976 | 1986 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 28.3 | 34.0 | 41.8 | 48.7 | 56.9 | 64.4 | 71.5 | 70.2 | 61.2 | 49.8 | 36.8 | 28.9 | 49.4 |
| Highest Mean Temperature (F) | 35.3 | 41.3 | 48.1 | 54.6 | 61.6 | 69.7 | 76.3 | 75.1 | 67.0 | 58.0 | 41.4 | 35.4 | 76.3 |
| Year Highest Occurred | 1999 | 1992 | 1992 | 1987 | 1992 | 1986 | 1998 | 1971 | 1990 | 1988 | 1999 | 1977 | 1998 |
| Lowest Mean Temperature (F) | 14.8 | 19.1 | 36.5 | 41.9 | 52.6 | 60.5 | 62.5 | 65.9 | 55.0 | 45.9 | 25.8 | 14.6 | 14.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1991 | 1991 | 1993 | 1980 | 1986 | 1995 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 19.1 | 23.2 | 28.2 | 32.9 | 40.2 | 47.0 | 52.1 | 50.3 | 41.3 | 32.0 | 24.6 | 19.3 | 34.2 |
| Highest Mean Min. Temperature (F) | 26.8 | 30.4 | 34.4 | 37.3 | 44.9 | 51.1 | 56.4 | 54.4 | 48.3 | 38.6 | 30.8 | 26.8 | 56.4 |
| Year Highest Occurred | 1981 | 1992 | 1983 | 1990 | 1993 | 1977 | 1998 | 1971 | 1998 | 1988 | 1998 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 4.0 | 9.9 | 23.1 | 27.5 | 35.7 | 43.3 | 47.2 | 45.7 | 33.3 | 28.5 | 13.9 | 3.3 | 3.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1972 | 1974 | 1980 | 1993 | 1974 | 1971 | 1978 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.50 | 0.96 | 1.06 | 1.03 | 1.34 | 1.07 | 0.70 | 0.75 | 0.50 | 0.67 | 1.50 | 1.39 | 12.47 |
| Highest Precipitation (in.) | 5.29 | 2.68 | 1.98 | 4.76 | 5.34 | 4.59 | 3.70 | 3.20 | 2.64 | 2.18 | 6.15 | 3.86 | 6.15 |
| Year Highest Occurred | 1984 | 1984 | 1995 | 1978 | 1998 | 1993 | 1982 | 1984 | 1985 | 1991 | 1983 | 1995 | 1983 |
| Lowest Precipitation (in.) | 0.04 | 0.02 | 0.10 | 0.00 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.07 | 0.00 |
| Year Lowest Occurred | 1988 | 1988 | 1994 | 1987 | 1974 | 1994 | 2000 | 2000 | 1999 | 1988 | 1999 | 1986 | 1987 |
| Heating Degree Days (F) | 1138. | 869. | 719. | 490. | 265. | 104. | 21. | 26. | 164. | 472. | 848. | 1120. | 6236. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 84. | 221. | 187. | 48. | 1. | 0. | 0. | 552. |